Weitzmann, Kurt, ed. Age of Spirituality: Late Antique and Early Christian Art, Third to Seventh Century. New York: The Metropolitan Museum of Art, 1979. no. 398, p. 440.
Spier, Jeffrey. "Medieval Byzantine Magical Amulets and Their Tradition." Journal of the Warburg and Courtauld Institutes (1993). p. 44, fig. 6b.
"An Early Byzantine Inscribed Amulet and Its Narratives." Byzantine and Modern Greek Studies (1999). pp. 25-42, fig. 1, 2.
Kalavrezou, Ioli. Byzantine Women and their World. Cambridge, MA: Harvard Art Museums, 2003. pp. 274, 283-284.